From patchwork Fri Jul 22 10:15:59 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wang WeiWei X-Patchwork-Id: 9243361 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id EAC1A6077C for ; Fri, 22 Jul 2016 10:22:29 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D96CF23B3D for ; Fri, 22 Jul 2016 10:22:29 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id CDCAC27F9A; Fri, 22 Jul 2016 10:22:29 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 469DC27D8D for ; Fri, 22 Jul 2016 10:22:24 +0000 (UTC) Received: from localhost ([::1]:46282 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bQXb5-0001eV-AF for patchwork-qemu-devel@patchwork.kernel.org; Fri, 22 Jul 2016 06:22:23 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:50021) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bQXW9-0005mW-Be for qemu-devel@nongnu.org; Fri, 22 Jul 2016 06:17:18 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bQXW8-0001Bs-1N for qemu-devel@nongnu.org; Fri, 22 Jul 2016 06:17:17 -0400 Received: from [59.151.112.132] (port=26267 helo=heian.cn.fujitsu.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bQXW0-00018z-MC; Fri, 22 Jul 2016 06:17:09 -0400 X-IronPort-AV: E=Sophos;i="5.22,518,1449504000"; d="scan'208";a="8983541" Received: from unknown (HELO cn.fujitsu.com) ([10.167.33.5]) by heian.cn.fujitsu.com with ESMTP; 22 Jul 2016 18:16:50 +0800 Received: from G08CNEXCHPEKD03.g08.fujitsu.local (unknown [10.167.33.85]) by cn.fujitsu.com (Postfix) with ESMTP id 4BE304290FED; Fri, 22 Jul 2016 18:16:50 +0800 (CST) Received: from localhost.localdomain (10.167.226.96) by G08CNEXCHPEKD03.g08.fujitsu.local (10.167.33.89) with Microsoft SMTP Server (TLS) id 14.3.279.2; Fri, 22 Jul 2016 18:16:50 +0800 From: Wang WeiWei To: qemu devel , qemu block , Stefan Hajnoczi , Fam Zheng , Max Reitz , Kevin Wolf , Jeff Cody Date: Fri, 22 Jul 2016 18:15:59 +0800 Message-ID: <1469182567-3114-3-git-send-email-wangww.fnst@cn.fujitsu.com> X-Mailer: git-send-email 1.9.3 In-Reply-To: <1469182567-3114-1-git-send-email-wangww.fnst@cn.fujitsu.com> References: <1469182567-3114-1-git-send-email-wangww.fnst@cn.fujitsu.com> MIME-Version: 1.0 X-Originating-IP: [10.167.226.96] X-yoursite-MailScanner-ID: 4BE304290FED.A5FF4 X-yoursite-MailScanner: Found to be clean X-yoursite-MailScanner-From: wangww.fnst@cn.fujitsu.com X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 59.151.112.132 Subject: [Qemu-devel] [PATCH v22 02/10] Backup: clear all bitmap when doing block checkpoint X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Changlong Xie , Wang Weiwei , zhanghailiang , Jiang Yunhong , Dong Eddie , Markus Armbruster , "Dr. David Alan Gilbert" , Gonglei , Paolo Bonzini , John Snow Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Wen Congyang Signed-off-by: Wen Congyang Signed-off-by: zhanghailiang Signed-off-by: Gonglei Signed-off-by: Changlong Xie Signed-off-by: Wang WeiWei --- block/backup.c | 18 ++++++++++++++++++ include/block/block_backup.h | 3 +++ 2 files changed, 21 insertions(+) create mode 100644 include/block/block_backup.h diff --git a/block/backup.c b/block/backup.c index 2c05323..3bce416 100644 --- a/block/backup.c +++ b/block/backup.c @@ -17,6 +17,7 @@ #include "block/block.h" #include "block/block_int.h" #include "block/blockjob.h" +#include "block/block_backup.h" #include "qapi/error.h" #include "qapi/qmp/qerror.h" #include "qemu/ratelimit.h" @@ -253,6 +254,23 @@ static void backup_attached_aio_context(BlockJob *job, AioContext *aio_context) blk_set_aio_context(s->target, aio_context); } +void backup_do_checkpoint(BlockJob *job, Error **errp) +{ + BackupBlockJob *backup_job = container_of(job, BackupBlockJob, common); + int64_t len; + + assert(job->driver->job_type == BLOCK_JOB_TYPE_BACKUP); + + if (backup_job->sync_mode != MIRROR_SYNC_MODE_NONE) { + error_setg(errp, "The backup job only supports block checkpoint in" + " sync=none mode"); + return; + } + + len = DIV_ROUND_UP(backup_job->common.len, backup_job->cluster_size); + bitmap_zero(backup_job->done_bitmap, len); +} + static const BlockJobDriver backup_job_driver = { .instance_size = sizeof(BackupBlockJob), .job_type = BLOCK_JOB_TYPE_BACKUP, diff --git a/include/block/block_backup.h b/include/block/block_backup.h new file mode 100644 index 0000000..3753bcb --- /dev/null +++ b/include/block/block_backup.h @@ -0,0 +1,3 @@ +#include "block/block_int.h" + +void backup_do_checkpoint(BlockJob *job, Error **errp);